News

Welcome Dr Thomas Leatham

Our NHMRC IMPACT project new Postdoctoral Research Associate at the University of Sydney.

Thomas completed an Honours degree in x-ray physics in 2019 and then his PhD in 2024 at Monash University. His research was concerned with developing the novel imaging technique of dual-distance dark-field x-ray propagation-based imaging, allowing the sub-pixel structures of a sample to be detected using only a coherent source of x-rays and a detector. By applying a Fokker-Planck formalism to the image formation process at two different propagation distances, phase and dark-field signals can be reconstructed independently of each other, providing increased sample information from a relatively simple setup. The method I developed has been shown to provide a more accurate phase signal than conventional transport-of-intensity equation (TIE) phase retrieval. His research interests lie in x-ray dark-field imaging and medical image quality assessment.


Exciting News Alert! 📣
🚀 Our latest Research Paper Published 🚀

Publication of a new x-ray dark-field imaging technique
IMPACT PhD student Mr Jannis Ahlers from Monash University has published a novel dark-field imaging technique in Optica, showing that x-ray energy information can reveal where in a patient there are porous or granular structures below the resolution of the imaging system. Because lungs are particularly porous, they generate a strong dark-field signal, while lung cancers generate no dark-field signal. We hope that this new technique will be of use in the detection of lung cancer.

Please join us in celebrating this remarkable achievement! 🎉
Access the article here